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Numatics™ 280 Digital Pressure Switches
Series 280 Sensor
The ASCO Numatics Series 280 digital sensors can be used as digital pressure-vacuum gauges for accurate visual display of the current value.
They can also be used for applications requiring extremely accurate measurement of a specific value - then generating a digital input to the PLC or controls system. The large LCD display is easy to view and changes color when the set point is achieved, causing the digital output to change state. Applications include verification of part present, quality assurance using decay leak testing, control of edges on film winding, clamping forces, evacuate and fill circuits, and pump up and down circuits.
Numatics™ 280 Digital Pressure Switches


2 way - 2/2 Normally Closed
Valve Actuation
Solenoid - Direct Acting
Body Material
24 AC, 110 AC, 115 AC, 120 AC, 208 AC, 220 AC, 230 AC, 440 AC, 480 AC, 24 DC, 240 DC, 12 DC, 120 DC, 6 DC, 48 DC
Air, Inert Gas
Pipe / Port Size
Port Type
From 0.1 Cv to 0.5 Cv
Operating Environment
Standards & Regulations
Type 1, CSA, UL


  • Hysteresis and window comparator modes of operation
  • Quick response (2.5 ms or less) repeatable to + 0.2 % of full scale + 1 digit.
  • Raised set buttons for simple intuitive programming
  • Large seven-segment LCD display with selectable, two-color display
  • OUT displayed when digital output is "ON"
  • Panel display shows: selected units, operation mode, output type (n.o. / n.c.), setting mode, and key lock
  • CE-marked and RoHs-compliant